Async Service Tests

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

models.message.js

import DS from 'ember-data';

export default DS.Model.extend({
  text: DS.attr('string')
});

services.user.js

import Ember from 'ember';

const { RSVP } = Ember;

export default Ember.Service.extend({
  store: Ember.inject.service(),
  
  loggedIn: null,
  name: null,
  message: null,
  
  signIn (data) {
  	return new RSVP.Promise((resolve) => {
      this._parseSignIn(data);
      resolve();
    });
  },
  signOut (data) {
  	return new RSVP.Promise((resolve) => {
      this._reset();
      resolve();
    });
  },
  _parseSignIn (data) {
  	this.set('loggedIn', true);
    this.set('name', data.name);
    
    this.set('message', this.get('store').createRecord('message', {
    	text: data.message,
    }));
  },
  _reset () {
    this.set('loggedIn', null);
    this.set('name', null);
    this.set('message', null);
    
    this.get('store').unloadAll();
  },
});

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

tests.unit.services.user-test.js

import { moduleFor, test } from 'ember-qunit';
import Ember from 'ember';

const { run, RSVP } = Ember;

moduleFor('service:user', 'Unit | Service | user', {
  // Specify the other units that are required for this test.
  needs: ['model:message']
});

test('exists', function(assert) {
  const user = this.subject();
  assert.ok(user);
});

test('can sign-out', function (assert) {
  return new RSVP.Promise((resolve/*, reject*/) => {
    const user = this.subject();
    user.set('loggedIn', true);
    user.signOut().finally(() => {
      assert.ok(!user.get('loggedIn'));
      resolve();
    });
  });
});

test('can sign-in', function(assert) {
  return new RSVP.Promise((resolve/*, reject*/) => {
    const user = this.subject();
    user.signOut().finally(() => {
      user.signIn({
        name: 'Jim',
        message: 'Hello World'
      }).finally(() => {
        assert.equal(user.get('name'), 'Jim');
        resolve();
      });
    });
  });
});

twiddle.json

{
  "version": "0.6.5",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": true
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.4.3",
    "ember-data": "2.4.0",
    "ember-template-compiler": "2.4.3"
  }
}